Some calls to 352-335-6555 are dropping before they ring. If you can't get through, call 352-231-7203.
It hears the tone.
It answers the phone.
It throws the switch.
CircuitWerkes builds the remote controls, telephone couplers, tone decoders and relay gear that radio stations and networks wire into their plants. Made in the U.S.A. Based in Gainesville, Florida.
Rather talk to a person? 352-335-6555
DTMF-16 SUB-03 DR-10 WAM-2 Telco-6 SiteSentry4
Six real jobs, one at a time: a DTMF-16 decodes touch-tones and switches an output; a SUB-03 hears a 25 Hz cue and closes a relay; a DR-10 answers a call and puts a remote on the air; a WAM-2 catches dead air, switches in a backup and texts you; a Telco-6 hears line 4 ring and closes its relay; a SiteSentry4 sees transmitter power drop and alerts you.
- Made in the U.S.A.Based in Gainesville, Florida
- Free firmware updatesWeb units update from the browser
- Innovative Product AwardFrom Radio magazine, for the Sicon-8
- Cool Stuff Award, 2009From Radio World, for the Silence Sentinal
Find the box for the job
Pick what you need to watch, answer, decode or switch. Every model has its own page with specs, manuals and list price.
Web remote control & audio monitoring
Watch meters, audio and alarms from any browser. Get e-mail and text alerts.
Touch-tone (DTMF)
Decode, generate and mute touch-tones, from single digits to long sequences.
Relays, closures & data
Multiply relays, carry closures down a three-wire cable, and delay serial data to match your profanity delay.
Your transmitter site, in any browser.
The SiteSentry4 reads four meters, two status inputs, two channels of audio and its own temperature sensor. When something leaves its limits, it runs the actions you set and e-mails or texts you. No Java, no plug-ins, one network port.
- Six relays, two of them DPDT, momentary or latching
- 16 alarms, each running up to three actions
- A 50-event scheduler for AM pattern and power changes
- Free firmware updates, loaded through the web page
$545 list price. Streaming version, SiteSentry4S: $655.
The SiteSentry4's main screen. Red meter backgrounds show low audio.
Keep your dial-up remote. Add the web.
Wire a SiteSentry's meter inputs across the channels you already meter, and its relays in parallel with yours. Your old remote keeps working. You gain web control, e-mail and text alarms, logging and a scheduler, for a fraction of the cost of replacing it.
TransmitterMeter samples and control inputs
Your dial-up remoteKeeps doing its job
SiteSentryAdds the web, e-mail and text alarms, logs and a scheduler
Built to your spec.
We modify our own designs, build private-label versions and design complete custom products. Full production usually starts at 50 to 100 pieces, and sometimes we can build as few as 5 or 10.
Some of what we've built
- 2,000 beep-tone generators for a major TV network. Each breaks into the audio and beeps three times on a contact closure.
- 4,000 PC interface units for a TV network, including the RF shielding and FCC Part 15 certification.
- A serial-to-relay converter that turns StarGuide II receiver data into 16 contact closures, for a large radio network.
- A touch-tone to serial converter for a TV network. It became our DT-232.
- Several hundred ringing-phone strobes for a buying co-op.
- The MPC-2, an FCC Part 68 telephone interface module we keep in stock for your own designs.
Need a transmitter?
CW Broadcast, a CircuitWerkes brand, builds FM transmitters from 50 W to 5 kW with direct digital synthesis exciters and LDMOS amplifiers, made in the U.S.A. The FM150ES and FM300ES are FCC type certified for LPFM.
Buy from the dealers you already use
CircuitWerkes gear is sold through broadcast dealers across the U.S. and Canada.
- Broadcast Connection, Inc.Bellvue, Colorado
- Broadcast Depot Corp.Miami, Florida
- Broadcast Supply WorldwideTacoma, Washington
- Broadcaster's General StoreOcala, Florida
- Crouse-Kimzey CompanyGrand Prairie, Texas
- Full Compass SystemsMadison, Wisconsin
- Giesler Broadcast Supply Inc.Alvin, Texas
- Lightner ElectronicsClaysburg, Pennsylvania
- ProVideo Systems, Inc.Perrysburg, Ohio
- RAM Systems, LLCMcHenry, Illinois
- RF Specialties, Inc.Independently owned offices in several locations; their website lists the nearest
- S.C.M.S., Inc.Pineville, North Carolina
- S.C.M.S., Inc., Bradley Broadcast DivisionFrederick, Maryland
- GS BroadcastTechMississauga, Ontario (formerly Oakwood)
- RAM Broadcast SystemsBarrie, Ontario
It hears the tone.It answers the phone.It throws the switch.
CircuitWerkes builds the remote controls, telephone couplers, tone decoders and relay gear that radio stations and networks wire into their plants. Made in the U.S.A. Based in Gainesville, Florida.
Rather talk to a person? 352-335-6555
Six real jobs, one at a time: a DTMF-16 decodes touch-tones and switches an output; a SUB-03 hears a 25 Hz cue and closes a relay; a DR-10 answers a call and puts a remote on the air; a WAM-2 catches dead air, switches in a backup and texts you; a Telco-6 hears line 4 ring and closes its relay; a SiteSentry4 sees transmitter power drop and alerts you.
Find the box for the job
Pick what you need to watch, answer, decode or switch. Every model has its own page with specs, manuals and list price.
Web remote control & audio monitoring
Watch meters, audio and alarms from any browser. Get e-mail and text alerts.
Touch-tone (DTMF)
Decode, generate and mute touch-tones, from single digits to long sequences.
Relays, closures & data
Multiply relays, carry closures down a three-wire cable, and delay serial data to match your profanity delay.
Your transmitter site, in any browser.
The SiteSentry4 reads four meters, two status inputs, two channels of audio and its own temperature sensor. When something leaves its limits, it runs the actions you set and e-mails or texts you. No Java, no plug-ins, one network port.
- Six relays, two of them DPDT, momentary or latching
- 16 alarms, each running up to three actions
- A 50-event scheduler for AM pattern and power changes
- Free firmware updates, loaded through the web page
$545list price. Streaming version, SiteSentry4S: $655.
Keep your dial-up remote. Add the web.
Wire a SiteSentry's meter inputs across the channels you already meter, and its relays in parallel with yours. Your old remote keeps working. You gain web control, e-mail and text alarms, logging and a scheduler, for a fraction of the cost of replacing it.
Built to your spec.
We modify our own designs, build private-label versions and design complete custom products. Full production usually starts at 50 to 100 pieces, and sometimes we can build as few as 5 or 10.
Some of what we've built
- 2,000 beep-tone generators for a major TV network. Each breaks into the audio and beeps three times on a contact closure.
- 4,000 PC interface units for a TV network, including the RF shielding and FCC Part 15 certification.
- A serial-to-relay converter that turns StarGuide II receiver data into 16 contact closures, for a large radio network.
- A touch-tone to serial converter for a TV network. It became our DT-232.
- Several hundred ringing-phone strobes for a buying co-op.
- The MPC-2, an FCC Part 68 telephone interface module we keep in stock for your own designs.
Need a transmitter?
CW Broadcast, a CircuitWerkes brand, builds FM transmitters from 50 W to 5 kW with direct digital synthesis exciters and LDMOS amplifiers, made in the U.S.A. The FM150ES and FM300ES are FCC type certified for LPFM.
Buy from the dealers you already use
CircuitWerkes gear is sold through broadcast dealers across the U.S. and Canada.
- Broadcast Connection, Inc.Bellvue, Colorado
- Broadcast Depot Corp.Miami, Florida
- Broadcast Supply WorldwideTacoma, Washington
- Broadcaster's General StoreOcala, Florida
- Crouse-Kimzey CompanyGrand Prairie, Texas
- Full Compass SystemsMadison, Wisconsin
- Giesler Broadcast Supply Inc.Alvin, Texas
- Lightner ElectronicsClaysburg, Pennsylvania
- ProVideo Systems, Inc.Perrysburg, Ohio
- RAM Systems, LLCMcHenry, Illinois
- RF Specialties, Inc.Independently owned offices in several locations; their website lists the nearest
- S.C.M.S., Inc.Pineville, North Carolina
- S.C.M.S., Inc., Bradley Broadcast DivisionFrederick, Maryland
- GS BroadcastTechMississauga, Ontario (formerly Oakwood)
- RAM Broadcast SystemsBarrie, Ontario
CircuitWerkes
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